The heat capacities of hydration (dCp) of the five nucleic acid bases A, G, C, T, and U, the sugars ribose and deoxyribose, and the phosphate backbone were determined using Monte Carlo simulations and the random network model. Solute-induced changes in the mean length and root mean square angle of hydrogen bonds between hydration shell waters were used to compute dCp for these solutes. For all ...

Germline cell death in Drosophila oogenesis is controlled by distinct signals. The death of nurse cells in late oogenesis is developmentally regulated, whereas the death of egg chambers during mid-oogenesis is induced by environmental stress or developmental abnormalities. P-element insertions in the caspase gene dcp-1 disrupt both dcp-1 and the outlying gene, pita, leading to lethality and def...

A shallow aquifer with different redox zones overlain by intensive agricultural activity was monitored for the occurrence of 1,2-dichloropropane (DCP) to assess the fate and origin of this pollutant. DCP was detected more frequently in groundwater samples collected in aerobic and nitrate-reducing zones than those collected from iron-reducing zones. Simulated DCP concentrations for groundwater e...

2,4-Dichlorophenol (2,4-DCP) and 2,6-dichlorophenol (2,6-DCP) are two isomers of dichlorophenols, have been used as preservative agents for wood, paints, vegetable fibers and as intermediates in the production of pharmaceuticals and dyes. The aim of the study was to evaluate the impact of biofield energy treatment on the isotopic abundance ratios of 2 H/ 1 H or 13 C/ 12 C, and 18 O/ 16 O or 37 ...

The Streptomyces viridosporus T7A bacterium produces the extracellular lignin peroxidase ALiP-P3. The ALiP-P3-catalyzed oxidation of 2,4-dichlorophenol (DCP) was examined to understand its kinetic behavior. Initial rate data of the oxidation of DCP were obtained by a spectrophotometric peroxidase assay, and the kinetics were best modeled with a random-binding bireactant system, which differs fr...

Background In South Africa, integrating the management of health services at a decentralized district level within the authority of general health service (GHS) managers is a reform priority. The reforms promote administrative integration, i.e. transfer of administrative authority over disease control programmes (DCPs) from DCP managers to GHS managers and re-defining DCP manager roles from imp...

The dynamic potentials of highly excited vibrational states of deuterated phosphaethyne (DCP) in the D-C and C-P stretching coordinates with anharmonicity and Fermi coupling are studied in this article and the results show that the D-C-P bending vibration mode has weak effects on D-C and C-P stretching modes under different Polyad numbers (P number). Furthermore, the dynamic potentials and the ...

Plants using the C3 and C4 photosynthetic pathways differ in carbon-isotope composition, and this difference offers a means to estimate the relative abundance of these two functional groups in the palaeorecord. We report here results of a study aiming to evaluate pollen dC (dCp) of Poaceae (the grass family) as a proxy indicator for palaeoecological studies. On average dCp differs by /13 betwee...

3-Monochloro-1,2-propanediol (3-MCPD) and 1,3-dichloro-2-propanol (1,3-DCP) are not only produced in the manufacturing process of foodstuffs such as hydrolyzed vegetable proteins and soy sauce but are also formed by heat processing in the presence of fat and low water activity. 3-MCPD exists both in free and ester forms, and the ester form has been also detected in various foods. Free 3-MCPD an...